Medical gas mixing device

Abstract

The utility model discloses a medical gas mixing device which comprises a gas inlet box, an oxygen cavity and an air cavity, the oxygen cavity and the air cavity are arranged in the gas inlet box, electronic pressure gauges are arranged at the positions, corresponding to the oxygen cavity and the air cavity, of the gas inlet box, the electronic pressure gauges are connected with a controller through electric signals, and a first gas collecting hood is arranged in one side of the gas inlet box in a sealed mode. A gas dispersing hood is arranged in the position, located on one side of the first gas collecting hood, of the gas inlet box in a sealed mode, and a second gas collecting hood is arranged in the position, located on one side of the gas dispersing hood, of the gas inlet box in a sealed mode. The controller is used for controlling the output power of the corresponding variable-frequency air pump, so that the oxygen inlet amount and the air inlet amount can be conveniently and timely controlled, and the oxygen and the air are dispersed in different directions and then are intensively mixed for many times, so that the oxygen and the air are uniformly mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas mixing devices, in particular to a medical gas mixing device. Background Art

[0002] Medical gas is used for medical diagnosis and life-saving gas, among which medical oxygen is mainly used for rescuing patients and treating hypoxic patients. Most of the current gas mixing devices use air-oxygen mixers. Chinese patent CN216149062U discloses a medical gas mixing device, which belongs to the technical field of gas mixing equipment. A medical gas mixing device includes an air intake box, one side of the air intake box is fixedly installed with an air pump, the number of the air pumps is two, the other end of one of the air pumps is fixedly installed with an air intake pipe, and the other end of the other air pump is fixedly installed with an oxygen intake pipe, the inside of the air intake box is fixedly installed with a guide rod, the middle part of the guide rod is slidably connected with a movable valve, and both sides of the movable valve are fixedly connected with springs; in the utility model, the gas is discharged through the groove to reduce the pressure, and the gas in the other gas storage chamber is continuously entered, and due to the action of the springs on both sides, the movable valve moves to the middle, and finally the outlet hole corresponds to the inlet hole, and the air and oxygen go out of the air intake box and finally mix together, so that the oxygen content in the mixed gas can be stabilized at a fixed value.

[0003] The above prior art has the following deficiencies: in the prior art, when there is excessive oxygen or air entering the air inlet box, it can only be released through the regulating valve, thus causing a large amount of gas waste; and when the oxygen and air entering the air inlet box are discharged, it is not only difficult to evenly mix the oxygen and air through the fan, but also the long-term operation of the fan is not conducive to energy saving. Therefore, a medical gas mixing device is provided to solve the above problems. Utility Model Content

[0004] In order to solve the problems in the above background technology, the technical solution adopted by the utility model to solve the technical problems is: a medical gas mixing device, which includes: an air inlet box and an oxygen chamber and an air chamber inside the air inlet box, the air inlet box is provided with electronic pressure gauges at positions corresponding to the oxygen chamber and the air chamber, the electronic pressure gauge electrical signal is connected to the controller, a first air collecting hood is sealed inside one side of the air inlet box, a diffuser hood is sealed inside the air inlet box located on one side of the first air collecting hood, and a second air collecting hood is sealed inside the air inlet box located on one side of the diffuser hood.

[0005] As a preferred technical solution of the utility model, the first air collecting hood is provided with a first orifice plate at one end of the air diffusion hood, and the second air collecting hood is provided with a second orifice plate at the end opposite to the air diffusion hood.

[0006] As a preferred technical solution of the utility model, the air diffusion hood is an arcuate spherical structure, a top surface is arranged in the middle of the air diffusion hood, and dispersion holes are arranged on the outside of the top surface of the air diffusion hood, and a plurality of dispersion holes are arranged.

[0007] As a preferred technical solution of the utility model, the first air collecting hood and the second air collecting hood are both conical structures, and the air inlet box is provided with a ball valve body at the outlet end corresponding to the oxygen chamber and the air chamber, and the ball valve body is connected to a valve body knob.

[0008] As a preferred technical solution of the utility model, the air intake box is provided with pressure relief valves on both sides of the oxygen supply chamber and the air chamber, and the air intake box is provided with air intake pipes at the air intake ends of the oxygen supply chamber and the air chamber, the air intake pipes are connected to a variable frequency air pump, and the variable frequency air pump is electrically connected to a controller.

[0009] As a preferred technical solution of the utility model, the air inlet box is provided with an air outlet at one end of the second air collecting hood.

[0010] The utility model has the following advantages: the electronic pressure gauge detects that the oxygen or air pressure corresponding to the oxygen chamber and the air chamber is too high or too low, and can transmit the signal to the controller, and the controller controls the output power of the corresponding variable frequency air pump, thereby facilitating timely control of the oxygen intake and air intake;

[0011] The conical structure of the first gas collecting hood allows oxygen and air to be initially concentrated and mixed and pass through the first orifice plate, collide with the top surface of the gas diffusion hood and diffuse around. The gas can be mixed and concentrated again through the second gas collecting hood and discharged. By dispersing oxygen and air in different directions for many times and then concentrating and mixing them, a uniform mixture between oxygen and air is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the air intake box in a top view of a preferred embodiment of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the second gas collecting hood and the gas dispersing hood of the preferred embodiment of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the first gas collecting hood of the preferred embodiment of the utility model.

[0016] Explanation of the reference numerals in the accompanying drawings: 1. air inlet box; 2. oxygen chamber; 3. air chamber; 4. electronic pressure gauge; 5. controller; 6. first air collecting hood; 601. first orifice plate; 7. air dispersion hood; 701. dispersion holes; 702. top surface; 8. second air collecting hood; 801. second orifice plate; 9. air outlet; 10. ball valve body; 11. valve body knob; 12. pressure relief valve; 13. air inlet pipe; 14. variable frequency air pump. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Please refer to Figure 1-Figure 4 The utility model is a medical gas mixing device, comprising: an air intake box 1 and an oxygen chamber 2 and an air chamber 3 inside the air intake box 1, electronic pressure gauges 4 are arranged at positions corresponding to the oxygen chamber 2 and the air chamber 3 of the air intake box 1, the electronic pressure gauges 4 are electrically connected to a controller 5, a first air collecting hood 6 is sealed inside one side of the air intake box 1, a gas dispersion hood 7 is sealed inside the air intake box 1 located on one side of the first gas collecting hood 6, and a second gas collecting hood 8 is sealed inside the air intake box 1 located on one side of the gas dispersion hood 7.

[0021] Combination Figure 2 and Figure 4As shown, the first gas collecting hood 6 is provided with a first orifice plate 601 at one end of the gas dispersing hood 7, and the first orifice plate 601 can make the initially concentrated gas dispersed through the holes, and the second gas collecting hood 8 is provided with a second orifice plate 801 at the opposite end of the gas dispersing hood 7. The gas dispersing hood 7 is an arc-shaped spherical structure, so that it is convenient for the gases to collide and mix with each other through the dispersion holes 701. A top surface 702 is provided in the middle of the gas dispersing hood 7, and the gas is dispersed through the top surface 702. The gas dispersing hood 7 is provided with dispersion holes 701 on the outside of the top surface 702, and the number of dispersion holes 701 is set in a plurality. The first gas collecting hood 6 and the second gas collecting hood 8 are both conical structures.

[0022] Among them, the air inlet box 1 is provided with a ball valve body 10 at the outlet end of the oxygen chamber 2 and the air chamber 3, and the ball valve body 10 is connected to the valve body knob 11, so as to facilitate the adjustment of the opening size of the ball valve body 10, and the air inlet box 1 is provided with a pressure relief valve 12 on both sides of the oxygen chamber 2 and the air chamber 3, and the air inlet box 1 is provided with an air inlet pipe 13 at the air inlet end of the oxygen chamber 2 and the air chamber 3. Figure 1 As shown, the air intake pipe 13 is connected to a variable frequency air pump 14 , the variable frequency air pump 14 is electrically connected to a controller 5 , and the air intake box 1 is located at one end of the second air collecting hood 8 and is provided with an air outlet 9 .

[0023] Specifically, when the utility model is used, oxygen and air are respectively delivered to the oxygen chamber 2 and the air chamber 3 through the corresponding variable frequency air pump 14 and the air intake pipe 13. When the electronic pressure gauge 4 detects that the oxygen or air pressure corresponding to the oxygen chamber 2 and the air chamber 3 is too high or too low, the signal is transmitted to the controller 5, and the output power of the corresponding variable frequency air pump 14 is controlled by the controller 5. When oxygen and air enter the first air collecting cover 6 through the ball valve body 10, the conical structure of the first air collecting cover 6 can make the oxygen and air two fonts initially concentrated and mixed and pass through the first orifice plate 601. The oxygen and air mixed gas passing through the first orifice plate 601 will first collide with the top surface 702 of the diffuser cover 7 and diffuse to the surroundings, so that the gases can be mixed again, and the diffused gases will enter the second air collecting cover 8 through the dispersion holes 701 on the diffuser cover 7. The gases can be mixed and concentrated again through the second air collecting cover 8 and discharged through the second orifice plate 801. In this way, the oxygen and air are dispersed in different directions for many times and then concentrated and mixed, so as to ensure that the oxygen and air are mixed evenly.

[0024] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0025] Other parts of the present invention not described in detail belong to the prior art and will not be described here.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A medical gas mixing device, comprising: An air intake box (1) and an oxygen chamber (2) and an air chamber (3) inside the air intake box (1), characterized in that the air intake box (1) is provided with an electronic pressure gauge (4) at positions corresponding to the oxygen chamber (2) and the air chamber (3), the electronic pressure gauge (4) is electrically connected to a controller (5), a first air collecting hood (6) is sealed inside one side of the air intake box (1), an air dispersion hood (7) is sealed inside the air intake box (1) located on one side of the first air collecting hood (6), and a second air collecting hood (8) is sealed inside the air intake box (1) located on one side of the air dispersion hood (7).

2. A medical gas mixing device according to claim 1, characterized in that: The first air collecting hood (6) is provided with a first orifice plate (601) at one end of the air diffusion hood (7), and the second air collecting hood (8) is provided with a second orifice plate (801) at the end opposite to the air diffusion hood (7).

3. A medical gas mixing device according to claim 1, characterized in that: The air diffusion cover (7) is an arc-shaped spherical structure. A top surface (702) is arranged in the middle of the air diffusion cover (7). The air diffusion cover (7) is provided with dispersion holes (701) located outside the top surface (702). The number of the dispersion holes (701) is set to be a plurality.

4. A medical gas mixing device as claimed in claim 1, characterized in that: The first air collecting hood (6) and the second air collecting hood (8) are both conical structures, and the air inlet box (1) is provided with a ball valve body (10) at the air outlet end corresponding to the oxygen chamber (2) and the air chamber (3), and the ball valve body (10) is connected to a valve body knob (11).

5. A medical gas mixing device as claimed in claim 1, characterized in that: The air intake box (1) is provided with pressure relief valves (12) on both sides of the oxygen chamber (2) and the air chamber (3); the air intake box (1) is provided with air intake pipes (13) on the air intake ends of the oxygen chamber (2) and the air chamber (3); the air intake pipes (13) are connected to a variable frequency air pump (14); and the variable frequency air pump (14) is electrically connected to a controller (5).

6. A medical gas mixing device according to claim 1, characterized in that: The air inlet box (1) is located at one end of the second air collecting hood (8) and is provided with an air outlet (9).

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